... or 40.8VdcLow voltage shut down: DC 9.5V or DC 19.5V or DC 38.5VOver load: shut off outputOver ... 230V, 240V3.Frequency: 50Hz, 60Hz, 50Hz/60Hz(having frequency switch)4.Socket types: USA, Australia, universal, UK, France, Germany and ... promotions3.Hospital emergency rescue: surgical lighting, equipment use, etc.4.Home Appliances: Electronic energy-saving fluorescent, incandescent, small television ...